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DAFIF
DAFIF or the ''Digital Aeronautical Flight Information File'' is a comprehensive database of up-to-date aeronautical data, including information on airports, airways, airspaces, navigation data and other facts relevant to flying in the entire world, managed by the National Geospatial-Intelligence Agency (NGA).
== Withdrawal of public access ==
DAFIF was publicly available until October 2006 through the Internet, however it was closed to public access because 'increased numbers of foreign source providers are claiming intellectual property rights or are forewarning NGA that they intend to copyright their source'. Currently only Federal and State government agencies, authorized government contractors and Department of Defense customers are able to access the DAFIF data.
At the time of the announcement, the NGA did not say who the 'foreign source providers' were. It was subsequently revealed that the Australian Government was behind the move. The Australian Government Corporation Air Services Australia in September 2003 started charging for access to Australian data.
Rather than exclude the Australian data, the NGA opted to stop making the data available to the public.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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